Flight Shenzhen Bao'an International Airport departs from Shenzhen Shenzhen Bao'an International Airport at 12:45 and arrives at Phuket Phuket International Airport at 15:40.
The flighttime is about 3h 55m. The distance travelled ("as the bird flies"): 1767 Km. So the average speed is roughly 451 Km.
There is an 1 hour time difference between Shenzhen and Phuket